I've read with interest all the recent post re: the relay and hooking up a
2nd battery...now a question.  Our 82 Westy came with the refrigerator 12
volt heater relay installed (this is the five post one shown in the Bentley
book for the 82 year camper) below the drivers seat.  All is good and
everything works as is, but I'd really like to get the Optima installed
soon.  Holding me back is the wiring I see...it doesn't match ANY of the
diagrams in the book for any year.

Here is the rundown of how it is now connected:

        Terminal 30.......Red 2.5mm
        Terminal 87.......Red 2.5mm
        Terminal 87.......Red 1.5mm
        Terminal 85.......Blue 0.5mm
        Terminal 86.......Brown 1.5mm attached to mounting screw (ground)

A few assumptions.. Terminal 30 goes to fridge
                       Terminal 87 2.5mm goes to Battery +
                       Terminal 87 1.5mm goes to Display unit
                       Terminal 85 goes to Alternator terminal D+
                       So Terminal 30 should go to the ignition switch terminal 50, but
instead goes direct to ground. Is this what Terminal 50 would do also?  I'm
having a hard time with the wiring diagram on this one, so any help would
be appreciated.

Thanks,
Mark